"Boom Cards play on modern browsers (released in the last three years) on interactive whiteboards, computers and tablets. Boom Cards apps are also available. Not sure your browser is modern enough? Try a free Boom Cards deck first. When you redeem your purchase, Boom Learning opens an account for you if you do not already have one. For TpT customers new to Boom Cards, Boom Learning will give you, for one year, a free account that lets you track student progress for up to 80 students. At the end of that year, you may renew or choose not to renew. If you do not renew, you will be able to continue using Boom Cards with the Fast Play feature. Fast Play does not track individual progress."